/* roulang page: index */
:root {
      --primary: #0F53D6;
      --primary-hover: #0A3997;
      --accent: #10B981;
      --warning: #F59E0B;
      --bg-dark: #0B132B;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    * {
      box-sizing: border-box;
      -webkit-font-smoothing: antialiased;
    }
    body {
      color: #334155;
      background-color: #F8FAFC;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Heiti SC", sans-serif;
      line-height: 1.75;
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(15, 83, 214, 0.12) 0%, rgba(11, 19, 43, 0) 70%);
    }
    .stage-card {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .stage-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(15, 83, 214, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    }
    details summary::-webkit-details-marker {
      display: none;
    }